Save the bartops. When you make lots of killer craft beers, you make sure you have plenty of coasters available. These particular coasters feature a fetching blue Municipal Brew Works seal logo, and they are printed on 1/4" thick black foam rubber. Nicely durable and skid-proof, so that Approachable Blonde American Ale stays right where you want it... right in front of you. Use a coaster, willya?